Electrocardiographic and electrophysiological characteristics of idiopathic ventricular arrhythmias with acute successful ablation at the superior portion of the mitral annulus

Table 3 Electrophysiologic Characteristics and ablation result of AP-MA VAs

Pt. no.	Pre-potential	A/V ratio during sinus rhythm	R/S ratio during unipolar recording	QRS-Uni (ms)	Perfect pace match	Stimulus-to-QRS interval	V-QRS interval (ms)	RFCA start to effect (s)	Recurrence during 3 days of monitoring	Recurrence during 1 year of follow up
1	No	0.21	0.19	52	No	0	54	8.1	Yes	No
2	No	0.28	0.00	0	No	0	0	17.3	No	Yes
3	No	0.35	0.31	7	No	0	15	7.7	No	No
4	No	0.03	0.22	47	No	0	18	4.2	No	No
5	No	0.05	0.00	6	No	0	31	16.5	No	No
6	No	0.58	0.09	30	No	0	0	17.3	No	No
7	No	0.03	0.00	25	No	0	5	30.2	No	Yes
8	No	0.16	0.00	12	Yes	0	7	N/A	No	No
9	No	0.46	0.00	24	Yes	0	50	19.3	No	Yes
10	No	0.04	0.00	8	Yes	0	12	9.2	No	No
11	No	0.31	0.00	22	No	0	0	5.59	No	No
12	No	0.10	0.10	16	No	0	14	21.3	No	No
13	Yes	0.43	0.07	40	No	26	0	17.4	Yes	No
14	No	0.33	0.00	26	No	0	17	19.1	Yes	Yes
15	No	0.05	0.00	17	No	0	14	17.5	No	No
16	No	0.21	0.00	12	Yes	0	0	3.2	Yes	No
17	No	0.43	0.00	8	No	0	7	20.1	No	No
18	No	0.04	0.00	15	No	0	0	23.1	Yes	Yes
19	No	0.22	0.00	28	Yes	0	9	21.7	No	No
20	No	0.22	0.00	24	Yes	0	12	14.4	No	No
21	No	0.19	0.00	9	Yes	0	10	5.6	No	No
22	No	0.13	0.00	0	Yes	0	9	13.2	No	No
23	No	0.28	0.00	0	Yes	0	14	5.4	Yes	Yes
24	No	0.29	0.00	24	No	0	6	N/A	No	Yes
25	No	0.28	0.00	12	No	0	37	8.5	No	No
26	No	0.23	0.02	25	No	0	25	N/A	No	No
Mean ± SD or percent	3.8%	0.23 ± 0.15	0.00–0.03 (0.00)*	18.8 ± 13.6	34.6%		3.75–17.3 (11)*	14.1 ± 7.2^#	23.1%	26.9%

Values are given as the mean ± SD (range) or percent (%), unless otherwise indicated. N/A: Time to effect were not available due to infrequently episode of VAs during ablation
^#The RFCA start-to-effect time of 14.1 ± 7.2 s were for the 23 patients (88.5%), in the remaining 3 patients (11.5%), the mean duration of successful RFCA was not well determined due to infrequent nature of clinical VAs during ablation

ISSN: 1471-2261